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lapo4ka [179]
2 years ago
8

Please help with math (30 points)

Mathematics
1 answer:
ikadub [295]2 years ago
8 0

Here we have some problems about circles, the solutions are:

  • a) 490.6 yd^2
  • b) x = 15
  • c) x = 27

<h3>How to find the area of a circle?</h3>

We know that for a circle of diameter D, the area is given by:

A = pi*(D/2)^2

where pi = 3.14

In the image we can see that the diameter of the circle is 25 yd, replacing that in the area equation we get:

A = 3.14*(25yd/2)^2 = 490.6 yd^2

<h3>How to find the value of x?</h3>

<u>For the second image</u>, each line creates two 180° angles. So, if we look at the tilted line, we can see that it is divided in two angles, one of 37° and the other that depends of x, so we can write:

180° = 37° + (9x + 8)°

180° - 37° - 8°  = (9x)°

135°/9° = x = 15

So the value of x is 15.

For the last image:

Notice that we have a 90° angle denoted, then <u>the other 3 sections must add up to 270°.</u>

270° = 54° + (2x + 21)° + (5x + 6)°

Now we solve this for x:

270 - 54 - 21 - 6 = 2x + 5x

189 = 7x

189/7 = x = 27

x is equal to 27

If you want to learn more about circles, you can read:

brainly.com/question/25306774

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Answer:

180 strips

Step-by-step explanation:

Note that:

1 yard = 36 inches

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x = 5 × 36 inches

x = 180 inches

Hence:

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How many 1-inch strips can be cut from the fabric?

180 inches = 1 piece of fabric

1 inch = x

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3 years ago
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kap26 [50]

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3

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15g

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15×1/5

15/1×1/5=3

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2 years ago
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Which of the following describes the image of a figure after a dilation that has a scale factor between zero and one?
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When a figure or shape is dilated , the size of the figure either enlarges or shrank without changing its actual shape.

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7 0
3 years ago
Jeremiah currently has an account balance of $1624.35. His initial deposit on the account was $975 and it earned 3.7% simple int
Naya [18.7K]

Current Account Balance = $1,624.35

Initial Deposit = $975

Interest Rate (Simple) = 3.7% simple interest

Interest Earned = Current Account Balance - Initial Deposit

⇒ Interest Earned = $1,624.35 - $975

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Now the Formula for Simple Interest is:

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Hence, Jeremiah has had the account for 18 years.

6 0
3 years ago
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